385852639 has 2 divisors, whose sum is σ = 385852640. Its totient is φ = 385852638.

The previous prime is 385852619. The next prime is 385852769. The reversal of 385852639 is 936258583.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385852639 - 2²¹ = 383755487 is a prime.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 385852592 and 385852601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385852609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192926319 + 192926320.

It is an arithmetic number, because the mean of its divisors is an integer number (192926320).

Almost surely, 2^385852639 is an apocalyptic number.

385852639 is a deficient number, since it is larger than the sum of its proper divisors (1).

385852639 is an equidigital number, since it uses as much as digits as its factorization.

385852639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 385852639 is about 19643.1321076859. The cubic root of 385852639 is about 728.0152749834.

The spelling of 385852639 in words is "three hundred eighty-five million, eight hundred fifty-two thousand, six hundred thirty-nine".